System Map
Understand TGSS, INSS, ISM, SEPE, Health Services, Schemes, and Benefits
Send each issue to the body that owns the record, contribution, benefit, or healthcare decision.
Separate the institutions
The General Treasury of Social Security, or TGSS, manages affiliation, the Social Security number, employer and worker alta and baja, schemes, contribution collection and contribution records. The National Social Security Institute, or INSS, recognises many cash benefits and healthcare entitlement. ISM performs parallel functions for the maritime scheme. SEPE manages contributory unemployment and unemployment assistance, while autonomous-community health services issue health cards and deliver most care. Regional and municipal social services administer other income, dependency and emergency support.
The official protection index shows that temporary incapacity, permanent incapacity, birth and childcare, risk during pregnancy, care of a seriously ill child, retirement, survivor protection and death grants are distinct contingencies. Each has its own event, registration, contribution, dependency, income or residence tests. A number or current alta never guarantees every benefit.
Identify the scheme and event
Most employees enter the General Scheme through the employer. Self-employed activity normally requires RETA registration by the individual. Household employment, sea work, internships, artists and other groups have particular rules. Civil servants and members of professional mutual schemes can have different arrangements. Misclassifying an employee as autónomo can shift contributions and protection unlawfully.
Contributions finance defined protection, but tax and Social Security are different systems. Municipal registration, immigration status, healthcare entitlement and benefit entitlement are also separate records. A person can have an NSS yet no current alta, healthcare through another route, or a pension claim requiring foreign periods.
Use TGSS for number, alta, scheme, bases and debt; INSS or ISM for the relevant insured benefit; SEPE for unemployment; the regional health service for care delivery; and social services for non-insurance support. Where an employer failed to register work, preserve the work evidence and pursue the TGSS and labour-enforcement route without waiting for a later benefit refusal. Confirm the corrected scheme, dates and bases in a newly downloaded official report.
Coverage
Establish Coverage from Work, Self-Employment, Family, Residence, Study, or Another Country
Apply the correct scheme and coordination rule instead of choosing the most convenient system.
Start with actual activity
An employee working in Spain is normally registered by the employer before work begins. An autónomo generally registers personally before starting habitual economic activity. A Social Security number can be obtained in advance, but it does not create current insured status. Students on placements, household employees, platform workers, company directors and people mixing employment and self-employment need the rule for the real relationship, not its label.
Benefit access then depends on the protected event. Sick pay can require a contribution period for common illness, while accidents do not. Birth benefit uses age-based contribution tests. Unemployment, retirement and permanent incapacity use their own periods and causes. Healthcare may arise through insured work, pension, benefit, dependant status, EU coordination, residence-based entitlement or another specific route. Means-tested and non-contributory protection adds income, asset and residence tests.
Handle cross-border work first
Under the current EU coordination rules, only one country's legislation normally applies at a time. The default is usually the country of work, not the worker's preferred country or nationality. A qualifying posted employee or self-employed person can remain in the home system with a valid A1, commonly for up to 24 months unless an agreed extension applies.
For regular work in multiple EU countries, substantial activity in the residence country generally means at least 25 percent of working time or income. Employer locations, mixed employee and self-employed activity, cross-border commuting and civil service create special branches. Notify the competent institution before assuming two payroll systems should charge. An S1 can coordinate healthcare where the insured country and residence country differ.
Third-country agreements vary by country and benefit. Period aggregation does not necessarily transfer contribution money or make every benefit exportable. Students without paid insured activity and financially inactive residents should establish healthcare and residence support separately. Obtain a written applicable-legislation determination when remote work, multiple countries, posting or employer location creates doubt.
Records
Create and Audit the Social Security Number, Alta, Work History, Bases, and Personal Data
Treat each official report as evidence of one fact, then reconcile the complete employment record.
Build the identity file
Keep DNI, NIE or passport, immigration work permission where relevant, current address, telephone, email and bank ownership. The Social Security number service allows a person without one to request it; an employer can also initiate affiliation for a first insured job. Avoid duplicate numbers. If two identifiers appear, ask TGSS to unify them rather than choosing one informally.
For each activity, keep the signed contract or business registration, employer identity and contribution account, scheme, occupational group, actual start and end, hours, salary, payslips, bank credits and tax certificates. Preserve internship agreements, posting A1, S1, foreign insurance statements and special-agreement documents when applicable.
Reconcile Importass reports
The 2026 Importass guide collection provides current routes for the number, work history, contribution bases, personal data, autónomo registration, annual regularisation and special agreements. Work history proves declared alta and baja periods. The base report shows declared contribution bases. Neither alone proves real hours, salary, contractual status or every benefit condition.
Compare each month with payroll and actual work. Flag late alta, early baja, missing employer, wrong scheme, overlapping records, reduced hours, absent internship, understated base or identity mismatch. Autónomos should compare expected and paid bases, net-income data and the annual regularisation decision. Update contact information so electronic and postal notices reach you.
Submit a focused correction request with an indexed chronology and primary evidence. Keep the receipt and corrected report. Where the issue arises from undeclared work or false self-employment, preserve schedules, instructions, clients, equipment, messages and payment evidence for TGSS and Labour Inspectorate. Redact unrelated information. Audit at job start, after the first payroll, at termination, annually and before any benefit, residence or pension claim. Keep reports by download date because later corrections can overwrite the visible history. Record who filed each correction, the legal employer name, affected months, supporting documents, response deadline and final outcome.
Action Plan
Register Before Work, Verify Payroll, Claim the Specific Benefit, and Track the Decision
Complete affiliation, contribution, benefit, healthcare, and correction steps through their proper channels.
Follow the operating sequence
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Classify the activity. Decide employee, autónomo, internship, household employment, posted work or multi-country work from the facts. Resolve immigration permission and applicable-country rules before the start.
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Obtain or verify the NSS. Correct duplicates and identity errors. Give the employer only the information necessary for registration.
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Complete alta before work. The employer handles an ordinary employee alta; an autónomo handles RETA registration. Obtain confirmation rather than relying on a promise.
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Check the first record. Open Importass and verify scheme, employer, start date and status. Compare the first payslip's contribution base and deductions with contract, hours and bank credit.
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Establish healthcare. Use the INSS entitlement route and regional health-service registration appropriate to insured, dependant, pension, S1 or residence status. Keep the entitlement decision separate from the health card.
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Report the protected event. For illness, birth, unemployment, retirement or another contingency, use its current official service, eligibility test and document list. Do not send a generic request to TGSS when INSS or SEPE must decide the benefit.
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Track notices and payment. Record submission, authority, reference, decision, calculation, bank date, review deadline and any employer-delegated payment. Open electronic and postal notifications.
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Correct records promptly. File TGSS evidence for wrong alta or bases and preserve the separate benefit review. An employer complaint alone does not correct the official record.
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Report changes. Job end, employer change, new self-employment, address, bank, family status, work abroad, return, pension start or departure can affect different records. Notify only the responsible bodies and retain proof.
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Run an annual audit. Download work history and bases, reconcile all months, save tax and benefit certificates, and calculate future contribution gaps. Before leaving coverage, assess unemployment, healthcare, special-agreement, pension aggregation and immigration consequences. Confirm the closing baja and next active status in the official record.
Contributions
Understand Employee, Employer, Autónomo Contributions and What They Actually Protect
Distinguish contribution funding, benefit formulas, healthcare, tax, private cover, and means-tested support.
Read employee contributions correctly
An employee pays statutory shares withheld through payroll, while the employer pays additional shares and reports the base. Common contingencies, unemployment, training, intergenerational equity and occupational contingencies have distinct rates and allocation. Occupational accident and disease and FOGASA are normally employer-side items. The contribution base is not simply net salary, and caps, overtime, benefits in kind and special contracts can affect it.
Rates and ceilings change, so use the live annual order and payslip model rather than copying an old percentage. A contribution can finance access and calculation but each benefit still applies its own qualifying period, event and regulatory base. Healthcare is not priced as a personal monthly insurance premium once entitlement exists, though pharmacy cost-sharing and uncovered services can remain.
Plan self-employed contributions
RETA registration, declared expected net income, selected provisional base, monthly payment and later annual regularisation form one system. Tax returns and Social Security data are compared; a worker can owe or receive a difference. Reduced initial rates and activity-specific rules have conditions and time limits. Budget gestor fees, professional insurance and cash flow, but remember that official registration and reports are available without a paid intermediary.
The Importass service guides are the current route for registration, data changes and regularisation. Keep every base choice and decision.
Identify uncovered costs and gaps
Private health, income-protection or pension products do not replace mandatory registration. Translation, apostille, travel, medical reports and professional appeals can cost money, but official NSS, reports and ordinary claims are free. A contribution gap can affect benefit qualification and pension amount. Before voluntarily paying a special agreement, obtain a projection of protected contingencies, base, monthly cost, duration and exit conditions. Never pay an agent who promises to create contribution history, erase debt or guarantee a benefit. Compare any private policy only after mapping the statutory gap it is intended to cover.
Transitions
Protect Coverage Through New Jobs, Unemployment, Self-Employment, Moves, Posting, and Retirement
Close one status and activate the next without assuming coverage follows automatically.
Close and open statuses deliberately
At a job change, verify the former employer's baja and new employer's alta, compare dates and audit both final and first payrolls. At contract end, register as a jobseeker with the regional employment service and apply to SEPE within the applicable benefit timetable. Healthcare, temporary incapacity and birth benefit can follow special payer transitions, so obtain case-specific instructions rather than assuming the employer remains responsible.
Before starting self-employment, complete tax and RETA registration in the correct order and date. When ending it, close both systems and preserve invoices, tax filings, contribution decisions and debt status. A mixed employee and autónomo period can require both records. Marriage, separation, birth, dependant changes, disability and death can affect healthcare and family or survivor protection but do not update every file automatically.
Manage international moves
Before posting, cross-border commuting or regular remote work abroad, ask the competent institution which country's law applies. Obtain A1 before relying on home-system cover and S1 where residence healthcare is coordinated. Track expiry and material changes. For non-EU countries, use the exact bilateral agreement. Exportability and aggregation differ by benefit.
On departure, do not deregister blindly. Check current work end, unemployment export, healthcare, pension, family benefits, residence status, tax and any special agreement. Keep work history, bases, A1, S1, U1 or pension records and authority decisions. Foreign periods may be aggregated later, but the evidence must identify country, employer, dates and insurance number.
Plan long-term protection
Review pension projections and missing years well before retirement. A special agreement can maintain defined contributions after an eligible transition, but it creates recurring personal cost and does not reproduce every prior protection. Compare it with actual future work and foreign coordination. After any change, re-download work history and bases, confirm the new healthcare or benefit payer, update contact and bank data, and calendar the next renewal, review or annual regularisation.
Problems
Fix Missing Alta, Wrong Bases, Denied Benefits, Debt, Overpayment, and Cross-Border Conflicts
Correct the owning record first, preserve every appeal deadline, and escalate unsafe or fraudulent work promptly.
Build the correction file
For a missing or wrong record, create a chronology with identity, employer or activity, real start and end, scheme, hours, salary, declared base and desired correction. Attach contract, schedules, messages, payslips, bank credits, tax records and witnesses as appropriate. Download the current work-history and base reports before filing so the original error is preserved.
Send affiliation and contribution corrections to TGSS. If work was undeclared, falsely self-employed or under-reported, also use the Labour Inspectorate with factual evidence. Do not threaten, alter records or take confidential customer data. A later correction can affect payroll, tax, unemployment, incapacity and pension, so request corrected downstream decisions separately.
Challenge the actual decision
For an INSS, ISM or SEPE refusal, delay, suspension, overpayment or amount error, read the notice for the prior administrative claim, allegations, review body and deadline. State the disputed finding, evidence, legal result and calculation. Keep the electronic or registry receipt. An informal appointment does not preserve a deadline. Social-court review may follow, and employment dismissal or wage claims can expire sooner than the benefit case.
For contribution debt, obtain the itemised period, principal, surcharge, interest and enforcement status. Correct identity or activity errors, challenge within the stated route, or ask about lawful payment options. Do not pay an intermediary to erase official debt.
Escalate urgent and cross-border cases
Where two countries charge contributions, seek an applicable-legislation determination and use the EU coordination liaison route rather than choosing one payment unilaterally. Preserve A1, residence, work-location and employer evidence. For immediate loss of medicine, food or housing, contact healthcare and municipal or regional emergency social services while the insurance dispute continues.
Use TGSS, INSS, ISM, SEPE, the regional health service, worker representatives, union, inspectorate, legal aid or qualified labour and Social Security counsel according to the failure. Bring the full decision, records, chronology, money calculation, desired remedy and earliest deadline.